-5a(a^2b-ab^2)÷ab
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-5a(a^2b-ab^2)÷ab-5a(a^2b-ab^2)÷ab-5a(a^2b-ab^2)÷ab-5a(a²b-ab²)÷ab=-5a(a-b)×ab÷ab=-5a(a-b)
-5a(a^2b-ab^2)÷ab
-5a(a^2b-ab^2)÷ab
-5a(a^2b-ab^2)÷ab
-5a(a²b-ab²)÷ab
=-5a(a-b)×ab÷ab
=-5a(a-b)
=-5a²+5ab
-5a(a^2b-ab^2)÷ab
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
a+b/2ab
2AB/A+B
a+b/2ab
已知a+b=3ab,求代数式(5a+ab+5b)÷(a-2ab+b)的值.
a(a-1)-(a×a-b)=-5,求(a×a+b×b)÷2-ab
-ab(a^2b^5-ab^3-b)
(ab(a^-2ab)-a^2b(a-3b))÷(3a^b)
计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
(a+ab)-[(ab-2b)-a]-(-9ab),其中a+b=-7,ab=3.
5ab^2-{2a^b-[3ab^2-(4ab^2-2a^2b)]}
合并同类项5a²b-3ab-4ab²+7ab-2ab²
(a^2-2ab)/(-ab+b^2)÷[a^2/(a-b)÷(2ab)/(2b-a)]
[(a^2-2ab)/-ab+b^2]/[(a/a+b)/(2ab/2b-a)]
a²-b²/a²-ab÷(a+ 2ab+b²/a)
化简:a²-b²/a²-ab÷(a+2ab+b/a)
化简:a² - b²/a²-ab ÷ (a+2ab+b²/a)